"I followed the debate about a successor for the C/C++ combination as the primary language for developing the GNOME core desktop platform very closely last month. There has been discussion about a number of options. What I would like to do on this page is give an overview how a probably less well-known language might be a viable compromise as a C/C++ successor. This language is called Eiffel and exists for over a decade. Eiffel takes the principle of Object-Oriented programming to its extremes and, as a consequence, is a very easy to learn language."

Well there's not much point in calling it OO if everything is OO now is there?

From wikipedia:
"The idea behind object-oriented programming is that a computer program is composed of a collection of individual units, or objects, as opposed to a traditional view in which a program is a list of instructions to the computer."

It's still very vague, but I think there's a clear line which would let any reasonable individual see that some things are OO, and some things are not OO.